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https://github.com/qpdf/qpdf.git
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9044a24097
Use get() and use_count() instead. Add #define NO_POINTERHOLDER_DEPRECATION to remove deprecation markers for these only. This commit also removes all deprecated PointerHolder API calls from qpdf's code except in PointerHolder's test suite, which must continue to test the deprecated APIs.
113 lines
2.3 KiB
C++
113 lines
2.3 KiB
C++
#define NO_POINTERHOLDER_DEPRECATION // we need to test the deprecated API
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#include <qpdf/PointerHolder.hh>
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#include <iostream>
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#include <stdlib.h>
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#include <list>
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class Object
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{
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public:
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Object();
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~Object();
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void hello();
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void hello() const;
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private:
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static int next_id;
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int id;
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};
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int Object::next_id = 0;
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Object::Object()
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{
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this->id = ++next_id;
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std::cout << "created Object, id " << this->id << std::endl;
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}
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Object::~Object()
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{
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std::cout << "destroyed Object, id " << this->id << std::endl;
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}
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void
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Object::hello()
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{
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std::cout << "calling Object::hello for " << this->id << std::endl;
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}
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void
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Object::hello() const
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{
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std::cout << "calling Object::hello const for " << this->id << std::endl;
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}
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typedef PointerHolder<Object> ObjectHolder;
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void callHello(ObjectHolder& oh)
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{
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oh.getPointer()->hello();
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oh->hello();
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(*oh).hello();
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}
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void callHelloWithGet(ObjectHolder const& oh)
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{
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oh.get()->hello();
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oh->hello();
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(*oh).hello();
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}
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int main(int argc, char* argv[])
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{
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std::list<ObjectHolder> ol1;
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ObjectHolder oh0;
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{
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std::cout << "hello" << std::endl;
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Object* o1 = new Object;
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ObjectHolder oh1(o1);
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std::cout << "oh1 refcount = " << oh1.getRefcount() << std::endl;
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ObjectHolder oh2(oh1);
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std::cout << "oh1 refcount = " << oh1.getRefcount() << std::endl;
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std::cout << "oh2 refcount = " << oh2.use_count() << std::endl;
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ObjectHolder oh3(new Object);
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ObjectHolder oh4;
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ObjectHolder oh5;
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std::cout << "oh5 refcount = " << oh5.getRefcount() << std::endl;
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if (oh4 == oh5)
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{
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std::cout << "nulls equal" << std::endl;
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}
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oh3 = oh1;
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oh4 = oh2;
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if (oh3 == oh4)
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{
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std::cout << "equal okay" << std::endl;
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}
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if ((! (oh3 < oh4)) && (! (oh4 < oh3)))
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{
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std::cout << "less than okay" << std::endl;
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}
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ol1.push_back(oh3);
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ol1.push_back(oh3);
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Object* o3 = new Object;
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oh0 = o3;
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PointerHolder<Object const> oh6(new Object());
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oh6->hello();
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}
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ol1.front().getPointer()->hello();
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ol1.front()->hello();
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(*ol1.front()).hello();
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callHello(ol1.front());
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callHelloWithGet(ol1.front());
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ol1.pop_front();
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std::cout << "array" << std::endl;
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PointerHolder<Object> oarr1_ph(true, new Object[2]);
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std::cout << "goodbye" << std::endl;
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return 0;
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}
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